Clivar related Sessions in 2018 Ocean Science Meeting Part 1: Sessions proposed by clivar scientists 5
AI011. Surface Currents in a Coupled Air/Sea System: Physics and Applications
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- AI013. Tropical Cyclone-Ocean Interactions: From Weather to Climate
- AI014. Turbulent Air-Sea Fluxes: Observations and Modeling
AI011. Surface Currents in a Coupled Air/Sea System: Physics and ApplicationsSession ID#: 28727 Session Description:Currents at the very surface of the ocean transport buoyant biological material including eggs and Sargassum, debris and contaminants such as oil, and fundamentally impact fluxes of momentum, heat and moisture across the air-sea interface. Though few observations have been made of currents at the very surface (within the upper few centimeters) of the ocean, it is understood that substantial shear can exist between the surface and depths of one to several meters deep, where most of the observations approximating the surface current are taken (e.g., from drifters with drogues, upward-looking ADCPs, or coastal radar). Not only is the velocity structure of the upper few meters poorly observed and its dynamics not fully described, but it is also unresolved in ocean models. As a consequence, for many applications involving numerical calculations of surface transport of biological materials and oil, crude parameterizations are often used to adjust ocean model currents to account for the unresolved vertical shear due to wind and waves. This multidisciplinary session invites contributions on the measurement and physics of surface currents and applications to biological and contaminant transport and air-sea fluxes modified by currents. Primary Chair: Mark A Bourassa, Florida State University, Tallahassee, FL, United States Co-chairs: Thomas Kilpatrick, UCSD, San Diego, CA, United States, J. Thomas Farrar, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Ernesto Rodriguez, JPL/NASA/Caltech, Pasadena, CA, United States AI012. The influence of El Niño Southern Oscillation on biogeochemical cycling in eastern boundary upwelling system oxygen minimum zones and air-sea exchange in the overlying watersSession ID#: 27615 Session Description:Elevated surface productivity and subsequent subsurface remineralization typically result in eastern boundary upwelling systems (EBUS) being characterized by well-defined oxygen minimum zones (OMZs). As a principal determinant of redox state, oxygen availability plays an important role in regulating biogeochemical cycles. To this end, large perturbations to nutrient and climate active gas cycling are often observed in EBUS OMZs when compared to the oxygenated ocean, and the upwelling conditions in these regions can rapidly transport atmospherically relevant gases to the surface waters, creating sea-to-air gas flux hotspots. Depressed upwelling and deeper and less pronounced OMZs caused by El Niño conditions, can, however, cause periodic variability to the conditions that are typically observed in EBUS OMZs, as recently demonstrated by the ASTRA-OMZ cruise to the eastern tropical South Pacific OMZ in October 2015. To fully understand the role of EBUS OMZs for oceanic and atmospheric nutrient and dissolved gas budgets, it is important to consider these kinds of climatic variability. We welcome all submissions related to furthering our understanding of biogeochemical processes in EBUS OMZs and air-sea gas exchange in the overlying waters, but particularly encourage those which consider the impacts of periodic climate variability caused by El Niño events. Primary Chair: Christa A Marandino, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany Co-chairs: Damian Grundle, Bermuda Institute for Ocean Science, Bermuda and Tobias Steinhoff, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany AI013. Tropical Cyclone-Ocean Interactions: From Weather to ClimateSession ID#: 22255 Session Description:Tropical cyclone (TC)-ocean interactions are critical for TC intensity changes because the ocean is the energy source for TCs. Air-sea interaction processes involve energy and momentum exchange between TCs and the ocean and are important on TC (i.e., short-term) and climate (i.e., long-term) timescales. On shorter timescales, TC-ocean interactions are critical for intensity forecasting. The intense winds of TCs also significantly impact the ocean through entrainment mixing and upwelling. On climate timescales, the evolving state of the ocean has strong implications for future TC activity projections and consequential societal impact. In particular, natural interannual (e.g., ENSO) and inter-decadal variability (e.g., the Pacific Decadal Oscillation and Atlantic Multidecadal Oscillation) and global warming affect the ocean, TCs, and their interactions. This session welcomes submissions under the broad discipline of TC-ocean physical and biogeochemical interactions from weather to climate timescales. It intends to provide a friendly platform for interactions among oceanographers, atmospheric scientists, and climatologists in this multi-disciplinary field. Primary Chair: Gregory R Foltz, NOAA Miami, Miami, FL, United States Co-chairs: Karthik Balaguru, PNNL, Marine Sciences Laboratory, Seattle, WA, United States and I-I Lin, National Taiwan University, Taipei, Taiwan AI014. Turbulent Air-Sea Fluxes: Observations and ModelingSession ID#: 29653 Session Description:The physical coupling between atmosphere and ocean helps to drive a myriad of processes, such as surface material transport, air-sea gas flux, and wind-wave interactions. Fundamentally, the interfacial fluxes of energy and mass occur at the molecules-wide boundary between air and water. Outside of nominal open ocean conditions, the fine-scale nature of these dynamics poses a significant empirical challenge and numerically representing the air-sea coupling is not trivial. It is therefore necessary to come to a mechanistic understanding of the processes affecting exchange of mass and energy across the air-sea interface, and advances in both observational and numerical methods are needed. This session invites contributions to better consolidate the role of the ocean-atmosphere coupled system and is focused on expanding the current understanding of the mechanisms driving air-sea fluxes. Submissions on near-surface processes that can modulate the interfacial exchange are encouraged. Presentations of novel techniques, methods, and/or venues for air-sea interaction study are highly encouraged. The Chairs hope that this session facilitates a focused discussion on the physics of air-sea interaction, with input from an array of technical backgrounds and perspectives. Primary Chair: David Ortiz-Suslow, University of Miami - RSMAS, Department of Ocean Sciences, Miami, FL, United States Co-chairs: Brian Ward, National University of Ireland, Galway (NUIG), School of Physics, Galway, Ireland and Kai H Christensen, Norwegian Meteorological Institute, Oslo, Norway Directory: sites -> default -> files -> documents -> news documents -> In the Red and Brown Water documents -> - documents -> Cbp and Trade Automated Interface Requirements Appendix: pga december 22, 2015 documents -> Ace abi catair customs and Trade Automated Interface Requirements documents -> Ace abi catair customs and Trade Automated Interface Requirements documents -> Mobile audio/video recording systems documents -> The south australian government gazette documents -> All public acts appearing in this gazette are to be considered official, and obeyed as such documents -> Union interparlementaire inter-parliamentary union news -> Apa newsletter: August 1999 Download 402.72 Kb. 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